In India, GST input tax credit (ITC) is available only when a registered person meets the statutory conditions: the purchase is used or intended for business, the goods or services are received, an eligible tax document is held, applicable supplier-reporting and GSTR-2B checks are satisfied, and the credit is claimed on time. Even a valid invoice does not make every expense creditable: personal or exempt-use portions may need to be excluded, and section 17(5) blocks specified categories subject to their exceptions.
This guide focuses on the Central Goods and Services Tax (CGST) framework and CBIC materials current as of 5 October 2026. State GST provisions generally operate alongside CGST, but state-specific provisions are not compared here. For a particular claim, check the law and rules that apply to its tax period.
Who can claim GST input tax credit?
Section 16(1) of the Central Goods and Services Tax Act, 2017 allows a registered person to take credit of input tax on goods or services used, or intended to be used, in the course or furtherance of business, subject to the Act and prescribed conditions and restrictions. Think of eligibility as a set of checks rather than an automatic benefit attached to an invoice.
- Confirm the recipient is registered and eligible. The section 16 entitlement is for a registered person and remains subject to other statutory restrictions.
- Establish business use. A purchase for personal or other non-business use does not qualify as business credit. Where an item is used partly for business and partly for non-business purposes, only the eligible share may be available under the prescribed apportionment rules.
- Confirm receipt. The goods or services must be received. For goods received in lots or instalments, section 16 provides for taking credit on receipt of the last lot or instalment.
- Hold an eligible tax document. This is generally a supplier tax invoice, debit note, or another prescribed document that supports payment of tax.
- Check supplier reporting and GSTR-2B where applicable. For invoices and debit notes covered by the reporting requirement, supplier furnishing and communication of details to the recipient in GSTR-2B are material checks under Rule 36(4).
- Screen for blocked or restricted use. Check both the section 17(5) blocked-credit categories and whether the purchase relates to exempt supplies or non-business use.
- Meet the claim deadline and file the relevant return. Section 16 requires filing the relevant return, and section 16(4) sets the general time limit described below.
These checks reflect sections 16 and 17 and the related CGST Rules; they are a practical screen, not a replacement for applying the statutory wording to the actual transaction.
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Two additional section 16 conditions to watch
- Depreciation on capital goods: Under section 16(3), ITC is not allowed on the tax component of the cost of capital goods or plant and machinery if that tax component is included in the cost on which income-tax depreciation is claimed.
- Payment to the supplier: If the recipient does not pay the supplier the value of the supply plus tax within 180 days from the invoice date, the section 16 proviso requires an amount equal to the ITC availed to be added to output tax liability, with interest as prescribed. Credit may be taken again when payment is made. Supplies subject to reverse charge are excluded from this particular 180-day condition.
What is blocked credit, and how do exempt supplies affect ITC?
Section 17 contains two related but different limits. First, credit must be apportioned when inputs are used partly for non-business purposes or partly for taxable and zero-rated supplies and partly for exempt supplies. In general, only the business-use and taxable-or-zero-rated share is available, with the prescribed calculation rules governing the apportionment.
Second, section 17(5) blocks ITC on enumerated categories even when an expense appears business-related. The section also contains category-specific exceptions, so the name of an expense alone is not enough to determine the result.
| Section 17(5) category | How to assess it |
|---|---|
| Specified motor vehicles and conveyances | Check the statutory description and any applicable exception; the category does not establish that every vehicle-related expense is treated identically. |
| Food and beverages; outdoor catering; beauty treatment; health services; cosmetic and plastic surgery | Check the precise category and its exceptions against the actual supply and circumstances. |
| Club, health and fitness memberships | These memberships are listed categories; do not assume that a business rationale alone overrides the statutory restriction. |
| Specified rent-a-cab, life and health insurance | The restriction is category-specific and subject to exceptions in the statutory text. |
| Travel benefits to employees | Check the statutory scope and any exception rather than treating every employee travel cost as the same type of benefit. |
| Works contract services for construction of immovable property | The section includes an exception for further supply of works contract service; whether it applies depends on the transaction. |
| Goods or services used for construction of immovable property on own account | Check the statutory treatment of plant and machinery and the facts of the construction and use. |
| Supplies on which tax is paid under the composition scheme | Composition-tax supplies are listed as a blocked category. |
| Supplies received by a non-resident taxable person, other than imports | The section distinguishes imports from other supplies to a non-resident taxable person. |
| Goods or services for personal consumption | Personal consumption is listed separately from business use. |
| Goods lost, stolen, destroyed, written off, or disposed of by gift or free samples | These events or dispositions are listed categories; check the actual facts and statutory wording. |
| Tax paid under specified fraud-related demands | The restriction applies to tax paid under the specified demand provisions, not to every tax payment. |
The category descriptions above are a screening aid, not a substitute for the full statutory clauses and exceptions. For a real expense, determine the exact clause, business or personal purpose, use in taxable, zero-rated or exempt supplies, whether an exception applies, and whether separate capital-goods depreciation rules matter. The CGST Act’s section 17(5) wording should be checked before treating a credit as available or blocked.
Which documents support an ITC claim?
Rule 36 of the CGST Rules identifies prescribed documents that can support ITC. Depending on the transaction, these include a section 31 supplier invoice, a debit note, a bill of entry or import document for integrated tax, and documents issued by an Input Service Distributor. Rule 36 also prescribes particulars for these documents and contains a limited proviso for cases where certain particulars are absent but specified core details are present. An informal receipt by itself should not be assumed sufficient.
Reconcile invoices and debit notes with GSTR-2B
For invoices and debit notes that suppliers must report under section 37, Rule 36(4) requires supplier furnishing in GSTR-1 or through the invoice furnishing facility and communication of the details to the recipient in GSTR-2B. Compare the purchase register and tax documents with GSTR-2B, and follow up with the supplier when an entry is missing or incorrect.
A missing or mismatched GSTR-2B entry is a reason to investigate and reconcile; it does not, by itself, answer every question about the recipient’s entitlement. Conversely, a matching entry does not establish that every section 16 condition—such as receipt, business use, or the absence of a section 17 restriction—has been met.
Keep records that explain the claim
Maintain records that connect the tax document to the transaction and the credit claimed. The CGST Accounts and Records Rules require registered persons, subject to stated exceptions, to maintain accounts including input tax and ITC claimed and a register of relevant tax documents.
- Keep the tax invoice, debit note, bill of entry, or other applicable prescribed document.
- Retain records supporting receipt of the goods or services.
- Record the business purpose and, where use is mixed, the basis for allocating the business and non-business or taxable and exempt portions.
- Reconcile the credit claimed with the purchase records and applicable GSTR-2B details.
What is the deadline for claiming ITC?
Under the current general rule in section 16(4), as reproduced in CBIC Circular No. 237/31/2024-GST, ITC for an invoice or debit note cannot be taken after 30 November following the end of the financial year to which it pertains, or after furnishing the relevant annual return, whichever is earlier. The annual-return date can therefore make the effective cut-off earlier than 30 November.
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The Finance (No. 2) Act, 2024 inserted sections 16(5) and 16(6) retrospectively from 1 July 2017 for specified situations. CBIC Circular No. 237/31/2024-GST, dated 15 October 2024, explains implementation of that relief. These provisions are limited to qualifying cases; they do not create a general extension for all late claims. A taxpayer considering historical-period relief needs to check the circular and the applicable law against the specific period and circumstances.
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